The graffiti murals that sprang up on the walls of Cairo were a spontaneous reaction to Egypt’s revolution. But, despite their cultural importance, they’re being demolished in an attempt to clean up the city ... or is it to erase the past?

Four year anniversary coverage of a crisis that has claimed the lives of 200,000 people, sparked a humanitarian catastrophe, fuelled violent Islamic extremism and exposed serious splits in the international community.

The video showing the burning alive of the captive Jordanian pilot Muadh al-Kasasbeh prompted revulsion around the world. Here, the author of an acclaimed new book on the rise of Isis examines the ideology that is driving the jihadi movement to ever more brutal killings